<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>w1d2-2</title>
    <style type="text/css">
        body
        {
            width:340px;
            height :800px;
        }
        table
        {
            border-collapse :collapse ;
        }
        th,td
        {
            width:100px;
            height:40px;
            border :1px solid #0c1501;
            font-size:12px;
            text-align :center;
        }
    </style>
</head>
<body>

<table border="1" align="center">

    </tr>
    <tr>
        <td colspan="3">产品信息</td>

    </tr>

    <tr>
        <th>产品名称</th>

        <th>产品价格</th>

        <th>产品有效时间</th>
    </tr>
    <tr>
        <td>蛋糕</td>

        <td>70.00</td>

        <td>2019-12-18</td>
    </tr>
</table>
</body>
</html>